Air-line oiler



March 25, 1930. E..PETER$ 1,751,714

AIR LINE OILER Filed June 16: 192'? 'INVENfOR.

JR luau cfz'd BY WA l4 1 EASATTONEY Patented Mar. 25, 1930 UNITED STATES PATENT OFFICE ARTHUR E. PETERS, or LITTLEToN, coLoEA'no, assrenoa To- INGEEsoLL-nANncoM- PANY, or JERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY Ara-LINE QTLEE Application filed June 16,

This invention relates to oiling devices, but more particularly to an air line oiler adapted to be interposed ina pressure fluid supply line leading from a source of pressurefluid supply to a machine intended to be actuated thereby. i

The objects of the invention are to insure an adequate and uniform supply of lubricant to fluid actuated machines during the entire period of operation and to prevent frequent interruptions in the operation of such machines for the purpose of introducing lubricant thereto.

Other objects of the invention will hereinafter appear and to all of these ends the invention consists of the combination of elements, features of construction and arrangement of parts substantially as hereinafter described and claimed and illustrated in the accompanying drawing in which is shown a longitudinal sectional elevation of an air line oiler constructed in accordance with the practice of the invention.

Referring more particularly to the drawing, A designates a casing, the interior B of which forms a reservoir for oil. Within the casing A is formed an integral annular wall C having a passageway D therethrough which communicates at its ends with a hose line E leading from a source of pressure fluid supply to a machine to be actuated thereby, as for instance, .a rock drill. The'passageway D in this instance is in the form of a Venturi meter in which the restricted or throat portion F is preferably located near the down stream end of the passageway D.

Adjacent the restricted portion F and extending thereinto is a plug G having a large threaded portion H threaded into a wall J of the casing A. The body portion K of the plug G may be suitably reduced in diameter in order to hold the weight thereof to a minimum.

The innermost end L of the plug G which projects into the restricted portion F of the passageway D is in the form of a nozzle,cand has a passage 0 which communicates withits outermost end with a recess P. Communication between the recess P and the reservoir B is effected through transverse passages Q, Preferably, screens 0 are disposed at the recess P for regulating thearea of the recess P, The needle. valve R is threaded throughout a portionjof its length as at U to engage threads V in theplug G. Preferably,

the outer end of the needle valve-R is pro yided with. a head .W'whereby theneedle valve It may be manipulated to effect a suitable adjustment thereof. I

As will be observed, he wall J of the casing liesat a lower elevationthan the top of the casing, thus forming agrecessiX 0f a-suitable depth to enable the outer endor head W of the needle valve R toliebelow the outer surface of the casing. By means of this construction the needle valve R will be accessible from the exterior of the casing for adjustment, and at the same time saidneedle valve:

will be protected against contact with irregularities in the surface whereby the casing A is supported and which might otherwise change the positionof the valve.

V In order to at all times insure an adequate supply'of pressure fluid of normal-pressure within the casing A tov act on the surface of theoil therein, a passage Y is formed in one end of the casing A to lead fromthe enlarged end ofthe passageway Dto a point near the top of the reservoir B. 1 a 1 To the end that oil may be introduced into the reservoir B in the various positions which the oiler may occupy in practice and thus I avoidthe necessity of shifting the oil er about fonfillingpurposes, the casing A is provided with a "plurality of filling openings Z, only one of which is shownflthe position of :the other beingindicated one of twofilling plugs 7 which form closures for the openings inner ends of the openings Z to prevent the introduction of foreign matter into the oil supply in the reservoir. Preferably one filling opening'Z is formed in the top of the easing A and the other in that end of the casing adjacent the passage Y. i I

The operation of the device is as follows: After the pressure fluid has been admitted into thehose line and the passageway D, a portion thereof will pass through the passage Y into the reservoir B to create a pressure on the surface of the oil. Inasmuch that there exists a pressure diiferential in the passageway D, that is, between the restricted portion F and the enlarged portionof the passageway adjacent the passage Y while the pressure fluid is in motion, the oil will be forced through the passages Q, and O in the plug G into the restricted portion F from whence it will be carried by the pressure fluid through the hose line E to the machine int-ended to be lubricated.

If at any time it be desired to decrease the amount of oil flowing into the passageway D, the needle valve B may be screwed down wardly somewhat to decrease the space between the point T of the'valve and the conical seat S. Conversely, if it bedesired to introduce a greater amount of oil into the passage way D the needle valve may be adjusted to increase the space between these elements.

I claim: 1. An air line oiler comprising a casing having an annular wall therethrough dividing the casing into a reservoir for oil and a passageway for pressure fluid, said passageway.

having a restricted throat portion and being tapered outwardly toward its ends, said casing having an oil passage connecting the restricted throat portion withthe reservoir and an air passage afl'ording communication between the reservoir andan enlarged portion of the passageway, and means in the 011 pas sage for controlling thevolume of oil delivered from the reservoir into the passageway. 2. An airline oiler compris ng a casing having an lntegral annular wall therethrough portion intermediate its ends and being tapered outwardly toward its ends, a plug in the casing extending into the restricted portion, said plug having a passage for conveymg 011 into the passageway, a passage 1n one end of the casing conveying pressure fluid from'an enlarged end of the passageway into the reservoir, and an adjustable needle valve in the plug controlling the volume of oil flowing'through the passage in the plug into the passageway.

i -An air line oiler comprising a casing having an integral annular wall therethrough dividing the casing into a reservoir for oil and a passageway for pressurefluid, said passageway having a restricted intermediate portion and being'tapered outwardly towards its ends, a plug in the casing ext-end- 'ing into the restricted portion of the passageway and having a passage for conveying oil from the reservoir into the passageway, a passage in one end of the casing conveying pressure fluid from an enlarged end of, the passageway into the reservoir, and a needle valve screwed into the plug controlling the passage therein, said needle valve being accessible for adjustment from'the exterior of the casing. 1

In testimony whereof I have signed this specification.

. ARTHUR E. PETERS.

dividing the caslng into a reservoir for oil and a passageway for, pressure fluid, said passageway having a restricted throat portion intermediate its ends and being-tapered outwardly toward its ends, a plug in the casing extending into the passageway, said plug having a passage for delivering oil transversely into the passageway, said casing having a passage for conveying pressure fluid from an enlarged end of the passageway-into the reservoir, and adjustable means in the-plug controlling the volume of oil flowing through the passage in the plug into the passageway.

3. An air. lineoiler comprising a casing having an integral annular wall therethrough dividing the casing into a reservoir for oil and a passagewayfor pressure fluid, 

